What is saccule?

Saccule is a small bag located in the inner ear. It consists of a sensory cell bed and is responsible for reloading the head movements into nerve pulses. These pulses are then interpreted by the brain. Saccule is particularly sensitive to head movements up and down. This is important for a sense of balance or balance. It is also used to collect information on linear movement in the vertical plane. Hair cells placed in the inner ear are structures that allow saccule to collect this vestibular information. The vestibular system consists of saccule, three semicircular channels and Utricle. These organs, responsible for maintaining a sense of balance, are placed in a liquid filled with a pipe known as a vestibule. The time bone in the skull is located this hallway.

In the inner ear are placed two vestibular bags. Saccule is the smaller of these two bags. Saccule is located near Scala vestibuli from Cochle. Scala vestibuli is part of an inner ear responsible for performing sound vibrations to a partEar scala media.

The

cavity containing saccule does not communicate directly with the spirit of uticle. Instead, he shows thickening, known as Macula Acustica sacculi. The saccular fibers are then distributed to the vestibular branch of the acoustic nerve. This nerve is often referred to as the cranial nerve VIII or vestibulocochlear nerve.

In the macula there are hair cells containing bundles of hair. These volumes are composed of a single cinema and several stereas. Kinocilium is a type of cilia, located at the top of the hair cells in the inner ear. Stereocilia is modifications of cells placed in the inner ear.

stereocilia are associated with ion channels in the plasma membrane on hair cells. It is located between hair cells that support cells that eliminate the otolithic membrane. This membrane consists of a thick gelatin layer of glycoprotein. Otolitical membrane is covered with a crystaly of calcium carbonate called otolity. That is why saccule is sometimes referred to as an otolite organ.